[Resource Topic] 2005/338: An Improved Power Analysis Attack Against Camellia's Key Schedule

Welcome to the resource topic for 2005/338

Title:
An Improved Power Analysis Attack Against Camellia’s Key Schedule

Authors: Lu Xiao, Howard M. Heys

Abstract:

This paper presents an improved simple power analysis attack against the key schedule of Camellia. While the original attack required an exact determination of the Hamming weight of intermediate data values based on power measurements, in this paper, two variants of the simple power analysis attack are presented and shown to be tolerant of errors that might occur in the Hamming weight determinations. In practical applications of the attack such errors are likely to occur due to noise and distortion in the power measurements and their mapping to the Hamming weights of the data.
Further, we propose a practical method to evaluate the susceptibility of other block ciphers to simple power analysis attacks. To resist these attacks, the required design rationale of key schedules and several practical countermeasures are suggested.

ePrint: https://eprint.iacr.org/2005/338

See all topics related to this paper.

Feel free to post resources that are related to this paper below.

Example resources include: implementations, explanation materials, talks, slides, links to previous discussions on other websites.

For more information, see the rules for Resource Topics .